Try using google maps and searching for Asian Markets, you might want to narrow down what you are looking for for a more specific recommendation.

A wok may not work for you if you don't have a high enough BTU burner, Alton Brown did a bit on this and settled on a large flat bottomed fry pan instead. America's Test Kitchen found none of the electric ones worth buying.

I own a large carbon steel round bottom wok, but since moving to an electric kitchen I haven't used it.

I've ordered from The Wok Shop (San Francisco) online and it was a great experience. I ordered the carbon steel set for my boyfriend a while back; it's a good value, and he's loved it for a couple of years now. The owner also included a note explaining step-by-step how to season it. There were also a ton of free items... a cookbook, chopsticks, and a couple of other small things I think. Minor too, but I loved that it came wrapped in a Chinese newspaper! http://www.wokshop.com/about.htmlI researched it quite a bit before I ordered it, and carbon steel was always highly recommended over any other material.

There is a great chapter on buying a wok in the cookbook "The Breath of a Wok". You can either buy the cookbook, which I really like or go to your nearest book store and read the chapter. She also lists places to buy woks. I'm not sure if she mentions stores in Boston but I did buy a wok from the store she recommended in NYC and it was easy!